LABORATORY TECHNIQUES IN ORGANIC CHEMIS
LABORATORY TECHNIQUES IN ORGANIC CHEMIS
4th Edition
ISBN: 2819260096009
Author: Mohrig
Publisher: MPS PUB
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Chapter 3, Problem 2Q
Interpretation Introduction

Interpretation:

Melting point, molar mass boiling point and the density of the reagents and products that are involved in the synthesis of the aspirin should be determined.

Concept introduction:

Molar mass is the sum of atomic masses of atoms that together constitute that compound.

The boiling point is the temperature of substance when its vapor pressure is equal to the vapor pressure of surrounding and compound changes its state from liquid to vapor.

Melting point is the temperature of substance at that substance converts from solid to a liquid state.

The density of a substance is the ratio of its mass and volume. It is denoted by ρ .

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you plan to carry out the syn- thesis of aspirin (acetylsalicylic acid) by reacting salicylic acid with acetic anhydride, using 85% phosphoric acid as a catalyst. In addition to aspirin, acetic acid will be a side product. Using one of the suggested online sources (such as the Sigma-Aldrich or Acros Organics websites), look up the molar masses for all of the reagents and products in this reaction. Also look up the melting points of salicylic acid and acetylsalicylic acid and the boiling points and densities of acetic anhydride and acetic acid. Your answers should include both the molar masses and the physical properties for all four reagents and products.
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Chapter 3 Solutions

LABORATORY TECHNIQUES IN ORGANIC CHEMIS

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